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Class Question When you warm up CO 2 or dry ice it goes directly from a solid to a gas. This processes is called 1. critical point 2. sublimation 3. isochoric processes 4. isentropic processes 5. None of the above.

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Class Question When you warm up CO 2 or dry ice it goes directly from a solid to a gas. This processes is called 1. critical point 2. sublimation 3. isochoric processes 4. isentropic processes 5. None of the above.

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The Ideal Gas The Ideal Gas Law P pressure exerted by the gas (Pa) V volume of the gas N number of molecules in the gas (m 3 ) T temperature of the gas (K) k = 1.38X10 -23 J/K Boltzmanns constant Most real gases obey this law with very slight deviations A mole is 6.022X10 23 molecules. R = N A k = 8.314 J/Kmole universal gas constant

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Class Question 1. T helium < T nitrogen 2. T helium = T nitrogen 3.T helium > T nitrogen 4.There is not enough information You have two containers of equal volume. One is full of helium gas. The other holds an equal mass of nitrogen gas. Both gases have the same pressure. How does the temperature of the helium compare to the temperature of the nitrogen?

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Class Question 1. T helium < T nitrogen 2. T helium = T nitrogen 3.T helium > T nitrogen 4.There is not enough information You have two containers of equal volume. One is full of helium gas. The other holds an equal mass of nitrogen gas. Both gases have the same pressure. How does the temperature of the helium compare to the temperature of the nitrogen?